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Vitamin B 12 deficiency can be determined, but not always. [14] This means it measures forms of vitamin B 12 that are "active" and can be used by the body, as well as the "inactive" forms, which cannot. [151] Vitamin B 12 deficiency can be found within normal levels, so clinical symptoms should be taken into account when a diagnosis is made. [2]
Other symptoms of vitamin B12 deficiency include memory loss, fatigue and weakness, nerve damage causing numbness and tingling in the arms and legs, dementia, depression, and seizures.
Deficiency symptoms in children include developmental delay, regression, irritability, involuntary movements and hypotonia. [34] Vitamin B 12 deficiency is most commonly caused by malabsorption, but can also result from low intake, immune gastritis, low presence of binding proteins, or use of certain medications. [6]
Pernicious anemia is a disease where not enough red blood cells are produced due to a deficiency of vitamin B 12. [5] Those affected often have a gradual onset. [5] The most common initial symptoms are feeling tired and weak. [4]
Symptoms “A B12 deficiency can cause physical and neurological symptoms, and research is also growing to support that it can also cause psychological issues as well,” says Shapiro ...
Vitamin B12 deficiency symptoms. In addition to weakness and fatigue, a B12 deficiency may also prompt a slew of other symptoms, ... depression. confusion. dementia. poor memory. mouth soreness.
In general, the most common cause of this condition is a deficiency of vitamin B 12. This may be due to a dietary deficiency, malabsorption in the terminal ileum , lack of intrinsic factor secreted from gastric parietal cells, or low gastric pH inhibiting attachment of intrinsic factor to ileal receptors. [ 10 ]
Vitamin B12 deficiency symptoms . Vitamin B12 deficiency has a few hallmark symptoms, according to doctors: Lack of energy. Mental fatigue. Nausea, vomiting, or diarrhea. Lack of appetite. Weight loss
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